The last few decades have seen a global rise in the incidence of autism spectrum disorder (ASD). Efforts into ensuring a timely assessment and developing intervention practices that are scientific and evidence-based have led to a large body of critical knowledge, and effective interventions are being implemented in developed countries. In South Asia, however, which is home to 20% of the world’s population, the prevalence of autism spectrum disorder remains unknown. While more developed countries have the infrastructure and resources to address the needs of those who have autism, developing countries continue to struggle with the issues of identification, diagnosis, and treatment. Because of limited awareness and resources, along with a lack of research, dearth of specialists, and inclination towards traditional healing practices, the treatment gap for ASD in South Asia remains at almost 100%.